OpenPipe is an open source scalable platform for manipulating a stream of documents. Pipelines are created from building bricks doing atomic operations on documents, like language detection, field manipulation, POS tagging, entity extraction or submitting the document to a search engine. OpenPipe was originally designed for indexing with the Solr full-text search engine, but could easily be adapted to any search engine or any other use case where documents need to be processed in various ways.